| spend |
to pay out. [3 definitions] |
| spent |
the past tense and past participle of "spend." |
| sperm1 |
a cell made by male animals. These cells fertilize the eggs made by a female, so that the animal can reproduce. |
| sperm whale |
a very large mammal that lives in the ocean. Sperm whales dive very deeply and can hold their breath for over an hour. They are related to porpoises, dolphins, and other whales with teeth. Sperm whales are the largest toothed whale. |
| spew |
to spurt out; vomit. [3 definitions] |
| sphere |
a round, solid figure in which every point on the surface is an equal distance from the center. [2 definitions] |
| sphinx |
a creature in Egyptian mythology that has a lion's body and the head of a human or animal. [2 definitions] |
| spice |
a plant substance with a quite unique smell or taste. Spices are used to flavor food and drink. [4 definitions] |
| spicy |
made with or having strong spices. [2 definitions] |
| spider |
a small animal with eight legs and a body made up of two parts. Most spiders spin webs in which they nest and catch insects to eat. Spiders are related to mites, ticks, and scorpions. |
| spike1 |
a long, thick nail used to fasten or tie heavy logs or railroad tracks. [4 definitions] |
| spill1 |
to cause or allow to flow or fall from a container. [7 definitions] |
| spill the beans |
to tell a secret by accident or on purpose. |
| spin |
to turn around and around rapidly, or give the sensation of rotating rapidly. [8 definitions] |
| spinach |
a green plant with leaves, often eaten as a vegetable. |
| spinal |
having to do with the spine or spinal cord. |
| spinal column |
the row of bones that runs along the center of the back; spine; backbone. The bones of the spinal column are called vertebrae. The spinal column protects the nerves in the spinal cord. |
| spinal cord |
the thick cord of nerve tissue inside the spine that runs from the base of the brain to the end of the spine. |
| spindle |
a thin rod on which thread is twisted and wound as it is spun. |
| spine |
the backbone; spinal column. [3 definitions] |
| spiral |
a curve that starts at a fixed point and continues to go around and around. [6 definitions] |